Alternate Formats Update: 345 Format Ruleset Simplification
To simplify the ruleset for the 345 format, the damage multiplier rule and its wording have been cut from the format’s description. Although the format will continue to (effectively) use this rule, Pokémon that would have been removed from the format by way of this rule will now instead show up on the format’s ban list.
This means that the following Pokémon now appear on the format’s ban list (they were already not legal before this, because of the multiplier rule):
For the sake of reference, the original multiplier rule follows below:
A Pokémon’s printed attack damage multipliers must not exceed the following, unless there is a cap on the damage:
20x on a Basic Pokémon
30x on a Stage 1 Pokémon
40x on a Stage 2 Pokémon
An attack’s damage is considered not to have a cap if it is possible for a player to apply the attack’s damage multiplier more than four times, with two exceptions:
The requirement of a coin flip or coin flips does count as a cap for the purpose of this rule. Example: Eevee FST 205’s Continuous Steps attack.
Scaling damage that is dependent on your opponent or your opponent’s board does count as a cap for the purpose of this rule. Example: Starmie BRS 55’s Psychic attack.
Examples:
This means, for example, that Simisear FST 38 is legal because even though its multiplier is 60x, its damage output is capped at 120.
This means that Morpeko FST 179 is not legal because, with the aid of an HP-increasing tool or Abomasnow CRE 10’s Toughness Boost ability, it is quite easy to put more than 4 damage counters on Morpeko to get past 4x the multiplier.
This also means that Eiscue BRS 44 is legal because, although its multiplier is 40x, its damage is output is capped at 160 (because you can’t have more than 4 Fusion Strike Energy in your deck).
This also means that Malamar CRE 70 is not legal, because as a Stage 1 its multiplier is 40x and there is effectively no cap on its damage output. (It is not at all unreasonable to get to 5 or more Rapid Strike cards in hand for its Rapid Strike Tentacles attack.)